Purification and partial characterization of a trypsin inhibitor from chick skeletal muscle

Ohkmae Kim, S. S. Chung, K. M. Woo, D. B. Ha, C. H. Chung

Research output: Contribution to journalArticle

4 Citations (Scopus)


A protein capable of inhibiting trypsin and a number of other serine proteases was purified from chicken skeletal muscle. It has an apparent molecular weight of 64.000 as determined by gel filtration. The inhibitor molecule binds trypsin at a molar ratio of 1:1 to form a stable complex, in which trypsin can be completely inhibited. In this complex. the inhibitor is extensively digested by trypsin but retains its inhibitory activity and tertiary structure by intramolecular disulfide bonds. In addition, its activity was found to markedly increase during development of embryonic muscle. The physiological role of this inhibitor, however, remains unknown.

Original languageEnglish
Pages (from-to)963-972
Number of pages10
JournalBiochemistry International
Issue number6
Publication statusPublished - 1992 Jan 1
Externally publishedYes


ASJC Scopus subject areas

  • Biochemistry

Cite this